PHP 比较两个字符串中有一个字符不同，通配符方法

Question

需要比较两个字符串以获得 PAIR，条件是只有第 5 个字符必须不同......在 mysql 中，它可以通过 INBXOLC800Y = INBX_LC800Y（使用 '_ ' 通配符）但是如何在 PHP 中执行此操作...这是我到目前为止的代码，但我想可能会有更智能的 and/or 最短路径 ???

$first_sku_full  = "INBXOLC800Y"; // with O
$second_sku_full = "INBXTLC800Y"; // with T

$first_sku_first_part= substr($first_sku_full,0,4); //gives first 4 characters INBX
$second_sku_first_part= substr($second_sku_full,0,4); //gives first 4 characters INBX

if($first_sku_first_part == $second_sku_first_part){  // matching first 4 characters

    $first_sku_last_part= substr($first_sku_full, 5);   // gives 6th onward characters i.e, LC800Y
    $second_sku_last_part= substr($second_sku_full, 5); // gives 6th onward characters i.e, LC800Y
    if ( $first_sku_last_part == $second_sku_last_part ) { // matching 6th and onward characters
        if ( $first_sku_full != $second_sku_full ) { // matching full strings
            echo "first and second sku is a pair <br/>";
        }else{
            echo "NOT a pair , both SKUs are same <br/>";
        }
    }else{
        echo "NOT a pair , last part of string not matched $first_sku_last_part vs $second_sku_last_part <br/>";
    }
}else{
    echo "NOT a pair , first part of string not matched $first_sku_first_part vs $second_sku_first_part<br/>";

}

Answer 1

将第5个字符替换为常量字符串

$first_sku_full_masked = substr_replace($first_sku_full, '#', 4, 1);
$second_sku_full_masked = substr_replace($second_sku_full, '#', 4, 1);

然后比较

这给了

INBX#LC800Y
INBX#LC800Y

这将被视为相等。所以条件是

$first_sku_full_masked==$second_sku_full_masked && $first_sku_full!=$second_sku_full

Answer 2

"with only condition that only 5th character must be different"

$first_sku_full  = "INBXOLC800Y"; // with O
$second_sku_full = "INBXTLC800Y"; 

if($first_sku_full[4] != $second_sku_full[4]) {
   //fifth character is different in case above it will return true because O != T
}

这样你可以检查第五个字符是否不同。您可以在 PHP.

中使用数组运算符访问字符串字母

如果你想比较没有 5 个字符的字符串的其余部分，你可以按如下方式进行

$first_sku_full  = "INBXOLC800Y"; // with O
$second_sku_full = "INBXTLC800Y"; 

$first_sku_full[4] = $second_sku_full[4] = '';

if($first_sku_full == $second_sku_full) {
    //the strings are same despite 5th character
}

Answer 3

试试这个功能：

function isOnlyThe5thCharacterDifferent($inp1,$inp2)
{
    if ($inp1[4]!=$inp2[4])
    {
        $inp1[4]=$inp2[4];

        return ($inp1==$inp2);
    }

    return false;
}

查看实际效果：https://3v4l.org/fn2sG

Answer 4

使用这段代码，您可以轻松配置N个必须不相等的位置

<?php
    $first_sku_full  = "INBXPLC800YF"; // with O
    $second_sku_full = "INBXTLC800YD"; // with T

    var_dump(isEqual($first_sku_full, $second_sku_full, array(4, 11)));
    /**
      * @param1 string $str1
      * @param1 string $str2
      * @param1 array  $pos
      * @return boolean
      */
    function isEqual($str1, $str2, $pos) {
        if       (strlen($str1) != strlen($str2))                return FALSE;

        for ($i=0 ; $i< strlen($str1) ; $i++) {
            if   ( in_array($i, $pos) && $str1[$i] == $str2[$i]) return FALSE;
            if   (!in_array($i, $pos) && $str1[$i] != $str2[$i]) return FALSE; 
        }
        return TRUE;
    }

Answer 5

在这里您可以定义您的自定义通配符或将其与来自 "Halayem Anis"定义多个通配符

// just an example array
$arrayToCheck = array(
    "INBXOLC800Y",
    "INBXOLC809Y",
    "INBXTLC800Y",
    "INBXALC800Y",
);

function compareWithWildcard( $stringToCompare, $compareWith, $wildcard = "_" ) {
    if( !$wildcard ) return ( $stringToCompare == $compareWith );

    $wildcardIndex = strpos( $compareWith, $wildcard );

    if( $wildcardIndex !== false ) {
        $stringToCompare[$wildcardIndex] = $wildcard;
    }

    return ( $stringToCompare == $compareWith );
}

$compareTo = "INBX_LC800Y";

var_dump( compareWithWildcard( $arrayToCheck[0], $compareTo ) );

PHP 比较两个字符串中有一个字符不同，通配符方法

PHP compare two string with one character different in both, wildcard approach

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